It sounds like the powertrain control module (PCM) is causing the problem. It is designed to send more power to the ignition system upon start up so you get a hotter spark and the engine starts easier when cold. However, after starting, the power is to be reduced to prevent burning out ignition components. If it doesn't do this, it will burn up the coil.
Wednesday, July 28th, 2010 AT 10:19 PM